Handheld controller



FIG. 1 is a perspective view of the handheld controller showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a left side elevation view thereof.

The broken lines shown are included for the purpose of illustrating portions of the handheld controller that form no part of the claim. 

CLAIM The ornamental design for a handheld controller, as shown and described. 